Heating-stove



Patented Sept. 6, |898.

R. A. CULTEB.

HEATING STVE.

(Application filed Feb. 2, 1898.)

3 Sheets-Sheet I.

(No Model.)

/N VEN TOR W/ TN-ESSES N0. 6|0,260. Patented Sept. 6, |898.

R. 'A1 CULTER. HEATING STOVE.

(Application filed Feb. 2, 1898.) (N o M o d e l 7 48 W/ TN ESSE S mguomls Preis co., PHoToLnno., wAsHwmoN. n c

No. 610,260. Patented Sept. 6, |898. B. A. CULTER. HEATING STOVE.

(Application led Feb. 2, 1898.) (N0 Model.) f 3 Sheets-Sheet 3.

W/TNESSES A /NVENT/-P RICHARD A. CULTER, OF PORIA, ILLINOIS.

HEATING-sTovE.

SPECIFICATION forming part of Letters Patent No. 610,260, dated September 6, 1898.

Application inea February 2,1898. serial no. 668,862.' KNO motel.) f

which will be specifically set out in the claims concluding this specification.

In the accompanying drawings are illustrated all my improvements, in which Figure l is a vertical longitudinal section of the stove. Fig. 2 is a transverse section,

and Fig. 3 is a horizontal section, of the stove,

taken through the draft-regulating valve.

- ported in the ring-jacket.

Fig. 4 is a view of the base-casting in perspective, showing the ash-pit and its openneck ash-door opening. Figs. 5 and 6 show the separate cap casting which forms the cover crossing the top of the ash-pit opening and forming a continuation of the base-cast ing curb. Fig. 7 shows in vertical section the base-binding ring with the foot-rail sup- Fig. 8 shows the ashepit-door end of the base with the airtight door and its convex inner facing standing within the ash-pit opening. The ash-pit neck is open at the top and, being also open at the end, forms three sides of the jointforming edge of the doorway, the outer end surface joining the floor and inner sides of the neck to form said edges, as in Fig. 4.

The stove is preferably of oval drum form, and the basecasting forms a deep ash-pit.

The base has the shape somewhat of a tray, with quite deep sides l l, and its bottom 2`is preferably corrugated longitudinally to prevent warping and cracking. The base is formed with a contracted part or neck 3 at one end, which has the opening 4, through which to withdraw the ashes, and which opening is controlled by a door 5, preferably hingedl to a lug G on the vertical wall at the end of the neck. The base-casting is formed with bottom bosses 7 to give the base a rm seating in settingup the stove upon it, the sides of the casting having rising from its top a comparatively thin curb 8, at the base of which, on its outer side, is a groove 9, both the curb and the groove terminating at each side of the open neck in a top surface thereof.

In casting the base the necwk-openifng/.L is left uncovered in Fig. 4 and the curb 8 does not cross it, but terminates in a seat or surface 10 at each side of the opening, whereby to form a seating for a separate' cap ll, which spans the opening and hasa curb '12 and a groove 13,V fitting and rendering the base- Ifourth lside of the doorway-joint, makes thereby the facing-joint for the door symmetlrical and continuous, as in Figs. 4, 5, and 6.

This construction is devised to render it practicable to cast the base with the neck-opening and bridge the opening with a separate casting as a section of the base-curb, so that the outer drum 14 and the inner drum will be fitted upon an uninterrupted curb.

The flatneck parts lOhave joint-forming risers 15, and coincident with the curb at the end thereof are tooth-like projections 16, which enter recesses 17, Figs. 5 and 6, in the under sides of the ends of the cap, thereby symmetrically seating and locking it with the base-curb and making a close joint at said seating. At each end the cap has ears 18, through openings in which nutted screws 19, Fig. 3, pass to secure it to the base," the nuts engaging the screws on the under outer side of the neck part and the ears being at the inner side ofthe segmental curb.

The sides of the bottom casting are preferably flaring and have studs or tooth-risers 20 on its inner wall standing a littleabove the base of the curb-at` the innerfside thereof,

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edge of the lining forming a closed joint with the base-curb by the action of said studs or tooth-risers.

The lining preferably extends to near the top of the outer drum and there joins it by a lip 23 to form a dead-air space, and thereby prevent the drum from becoming red-hot and from being discolored and burned out.

Near the top, vertically above the base-neck opening, the drum and its lining have coincident openings, and between the drum-bodies there is a metal ring-packing 24, Figs. l and 3, surrounding the openings to prevent the entrance of cold air between them at this opening and to form a solid wall for fastening a downdraft-tlue casting.

On the inner` wall of the lining is secured a downdraft-ilue receiving air at the drumopening and delivering it in a heated condition into the tire-chamber above the baseopening 4. This draft-liuc is a casting of two plates 25 26, screwed together, one of the plates, 25, being secured atits upper end upon the lining-drum, as I shall presently state, so that this flue is xed upon the lining-wall and supplies air for the combustion.

At the flue-opening the outer drum has secured thereto a separate ring-casting 27,which forms a seat for a draft-regulating screwvalve 28, and the screws 29, which secure this ring-seating, pass through the drum-bodies, the packing-ring 24, and through the draftiue plates and are nutted on their inner ends. The screw-valve 28 is a circular cap with a central handle 30 and a screw-stein 3l, and the ring-seating 27 has a cross-bar 32 in a threaded opening, in which the valve screwstem 31 engages. W`hile the screws 29 serve to secure the cast flue to the lining, the plate 25 of said flue may rest upon the cap-plate 11, as in Fig. l, and thereby relieve the screws from the weight of said fine-casting. The part 26 of this iiue is trough-shaped in crosssection and secured to the wall part by nutted bolts, as in Fig. 2, while nutted bolts 29 fasten together the fine-plates and the drums, and this construction makes it convenient in casting the separate flue parts and in applying and removing the i'lue. To remove and replace the flue, the screw-bolts 29 only are taken out.

Referring to Figs. 2, 3, and 5, the studs or tooth-risers 2l of the cap ll are seen as forming incline abutments for holding the bac-k part 53 of the flue hard against the liningdrum to bind the latter to the curb.

While providing for sealing and covering the joining of the drum around the outer side of the base-curb, it is also important to provide for sealing the joining of the liningj drum around the inner side of the base-curb to render it tight against the sifting of ashes under the drums and to keep the joint tight. The buckling of the lining-drum at its lower edge would tend to bulge it inward, and thereby expose such open edge to the direct action of the fire and hasten its destruction. To

prevent this, the studs or incline risers 2O 2l are cast on the inner side of the curb, the edge of each riser next to the curb inclining upwardly and inwardly above the top of the base-casting, so that the lining being seated upon the inclined edges of the risers the latter thereby act as jam abu tments, forcing the lining outward and holding it tightly against the curb. This jamming action of the inclines is only :rendered active by driving the lining-drum down upon the incline risers, and in this respect the inclines form a skeleton conical seat placed so as to force and jam the lining outward against the curb, as in Fig. l.

Thelining-drum is prevented from slipping up on the inclines by the screws 29, Figs. 1 and 2, which secure the line-plates to the drums, so that the cast iiue and the stovedrum serve to hold the lining-drum down.

The ring-seating has an annular ground surface 33, upon which the screw-valve 28. when driven home by a corresponding ground surface, forms an air-tight joint, and by this valve the air can be regulated to supply and control the combustion. The hot-air draftflue being secured in place upon the inner wall of the lining-drum, the top casting 34 is then fitted upon the outer drum. For this purpose the top casting has a depending curb 35, which is driven down tight within the inner drum. Ears 37,dependingfrom this curb, serve to receive screws to secure the top to the drum.

The top has the usual stovepipe-collar 38 and inside cast swing-cover 39, which is supplemented with an ornamental open swingtop 40.

At the base-joining of the drum I provide a binding-ring made in two equal parts 4l 41 and adapted to encircle and cover the basegroove 9 and edge of the outer drum and bind it upon the base-curb, and thereby prevent any warping or buckling of the drum at the joint. To render this binding-ring effective for preventing leakage of ashes and the entrance of cold air into the ash-pit, the joint is sealed by putting asbestos cement on the curb and into the base-groove and driving the drum tight on the base-curb, forcing the asbestos into the groove, as in Fig. 7. The asbestos is then smoothed off and the bindingring put on and secured, covering the sealed joint.

The ring parts join by lapping end joints 42 at the back and at the front, and at the latter their ends are narrowed and formed and adapted to fit over and upon the cap ll, which forms the top of the base at its neckopening, as in Fig. 3. The sides of the base outside of the drum have ears 43, Fig. 4, to which the binding-ring parts are secured by screws 44, and the ring parts have jackets 45, which overhang the base grooved part. Feetsockets 46 are also formed on the sides of the base, which are covered by the jacket-forming parts 45 of the binding-ring.

Back of the stove-collar the top has a reg- IOO IIO

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ister-slide 46', Fig. l, the purpose of which is to prevent condensed vapor forming in the smoke-pipe, which is liable in burning green wood, and for this purpose the register should be slightly open all the time.

The draft of the stove is furnished by the downfiu e, and the base-pit door should be kept closed. To prevent the ashes sifting through the joints of this door and to prevent the warping of the door, it is provided with a convex push-face 47, standing sufficiently into the opening to keep the ashes back from the edge. The bottom is slightly raised toward and at the edge 48 of the opening, which edge stands above the hollows of the corrugations and forms a ridge, as in Figs. l and 4. A separate hearth-plate 49 is screwed to the under side of the base-neck to hold ashes that may pass the ridge 48 of the opening. This construction renders it advantageous to use the base-casting as the ash-pit; but it will be understood that in using the stove the neckopening should be kept closed by drawing the ashes into the neck to the front opening.

The divided base-ring while serving the purposes stated serves also as the means for supporting the foot-rails 50 at the sides of the stove, and for this purpose the rin g-j acket 45 is provided with openings 5l for the engagement of the claws 52 of the foot-rails, as in Fig. 7.

Preferably the body is made of smooth refined steel and the lining of refined iron, which can be easily replaced at little cost when burned out.

The base is designed to be used with ashes filled up so as to close the opening in the neck of the base for the double purpose of preventing the burning of the floor and to aid in preventing a base-draft.

Fuel is introduced into the stove through the swing tops, and in doing this the screwvalve should be opened to prevent the smoke coming out of the top.

l claim as my improvementl. In a sheet-iron-drum stove and in combination with the drum and an ash-pit casting having the top curbing, a side doorwayopening extending across the top, and a ledge or seat at the top of each side of said opening, of a separately-cast plate constructed to connect at its ends the said side ledges or seats whereby to form a bridge for the ashpit-door opening and a continuation of the top of said base and its seating for the drum.

2. The stove-base having the open ash-pit and the top, the base formed With a side opening for the ash-pit doorway extended across the top, a ledge or seat at the top of each side of said doorway-opening and a curb rising from the top around the walls of the ash-pit, in combination with the drum and a separately-cast top plate forming a segment of the base-top adapted to connect and span the top of the doorway-opening and having a curb which when said separate plate is counected to bridge said doorway will be in circular alinement with the top curb and form a continuation thereof.

3. The combination with the stove-base having the open ash-pit formed wit-h an open side neck for the ash-pit doorway a ledge or seat at the top of each side of said open neck a curb around the walls of the ash-pit and terminating at each side of said open neck, of a separate plate adapted to connect the sides of andspan the open neck at its top and formed with a curb corresponding with and forming a continuation of the curb of the base and the stove-drum whereby the ash-pit neck is bridged to form the doorway and the seating v of the stove-drum made continuous.

4. The combination with the stove-drum and the base formed with a neck projecting from its side the floor of the ash-pit and the floor of the neck on a level both open at the top of the base and forming the ash-pit doorway, of a separate plate adapted to span the neck-opening and connect at its ends the side walls of the neck to form the top of the ash-pit doorway and a continuation of the top of the base, the said base andthe said bridgeplate having a continuous curb for the seating of the drum over the neck-bridge.

5. The combination With the stove-drum, of the ash-pit casting having the drum-joint forming-curb, and a lining-drum on the inner side of -the curb, of studs or risers arranged around the ash-pit walls on the inner side of the curb and having their sides next the curb inclined therefrom whereby the` ring and the valve-seat being secured by the same screw-bolts to the double drum-bodies. 7. The stove-base formed with the ash-pit IIO and the open-top neck at the side thereof each i side of the neck at its top having a seat-forining surface and risers 15 and studs 1G upon said surface, in combination with a separate bridge-plate having its ends formed to engage the risers and the studs and secured in symmetrical seating with the top of said base the said bridge-plate making the upper jointforming edge of the doorway-opening and forming the edge of said opening continuous for the doorway-joint.

8. The stove-base formed with the ash-pit and with the neck open at the top and end the latter' forming three sides of the jointfacing of the neck-opening, in combination with a separate bridge-plate for said opentop neck arranged in symmetrical seating with the top of the base and means for securing said bridge-p1ate n such relation to said neck-opening as to Complete the fourth side of and form the doorway-joint.

9. The Combination Wit-h the stove-drum and a base and a lining-drum, of the air-inlet flue the back plate thereof rests upon said base and a packing-ring at the air-inlet between the drums the said flue beck plate, the packing-ring and the drums being clamped xo together at the said packing-ring.

lO. In combination 'With the stove-drum,

RICHARD A. CULTER.

Witnesses:

ALBERT V. OULTER, C. ALFRED GEIGER. 

